官方APP下载:英语全能特训(微信小程序版,支持苹果手机、安卓手机)
创办于2003年
UNSV记不住?那就记中文谐音“忧安思危”吧!
  Slow and Steady Wins the Race!
UNSV英语学习频道 - Slow and steady wins the race!
van allen站长就要结婚了!终身vip会员特惠活动进行中 >>>
手机微信学英语
打开手机微信,扫描以下二维码,即可通过我们的微信小程序学英语。
英语全能特训(微信小程序)
UNSV英语学习频道淘宝网店
淘宝网店购买咨询
客服短信:18913948480
客服邮箱:web@unsv.com
初级VIP会员
全站英语学习资料下载。
¥98元/12个月
终身VIP会员
一次购买,终身使用。
¥1990元/终身

Scientists Say N. Korea's Nuclear Test Site Likely Collapsed

阅读次数:

站长婚礼祝福VIP会员优惠活动正在进行中,点此立即优惠购买!
VIP会员专享下载:(非VIP会员无权下载!如果想下载,但还不是VIP会员,请点此订购
下载方式:使用鼠标右键(注意是鼠标右键!)点击下面的MP3音频/MP4视频链接,然后选择“另存为…”。
MP3节目录音 MP3节目录音 
文章正文
同步字幕

Chinese researchers say the mountain above North Korea’s main nuclear test site has likely collapsed. If so, the collapse would make the test site unsafe for future testing, and the area would need to be examined for any leaking radiation.

Scientists at the University of Science and Technology of China carried out the research. Their findings may give new meaning to North Korean President Kim Jong Un’s recent announcement. He said this month that his country was ending its nuclear testing program ahead of planned meetings with the leaders of South Korea and the United States.

The results also support findings of an earlier study by a group of Chinese researchers. That report was published in March by the journal Geophysical Research Letters.

The latest study has also been accepted for publication by Geophysical Research Letters.

What could have happened?

The data in the most recent Chinese study was collected following the most powerful of North Korea’s six nuclear device tests, on September 3. That test was at least 10 times stronger than anything the country had tested before. Scientists say the explosion may have helped cause four earthquakes in the following weeks. Earthquakes do not naturally happen in the area around the test site.

The report by University of Science and Technology researchers said the first of those earthquakes was “an onsite collapse toward the nuclear test center.” They urged officials to continue to watch for leaks of radioactive material.

Special concern to China

North Korea’s nuclear tests are of special concern to China; the test site is less than 100 kilometers from the China-North Korea border.

North Korean nuclear tests have caused seismic events in Chinese border towns and cities. The explosions have led to evacuations of schools and offices, and fears of wind-carried radiation.

Chinese officials have said they have not measured any radiation risk from recent samples collected along the China-North Korea border.

Relations between China and North Korea have been worsening. Last month, North Korean President Kim Jong Un made a visit to Beijing, after Chinese officials put United Nations economic sanctions against the North in place. The sanctions reduced trade between the two countries by as much as 90 percent.

On Saturday, North Korea announced it would close its nuclear testing site and suspend nuclear and intercontinental ballistic missile tests. U.S. President Donald Trump called the moves “big progress.”

However, the North did not say whether it would give up its nuclear weapons or limit its production of missiles and their related parts.

I’m Jonathan Evans.

The Associated Press reported this story. Ashley Thompson adapted it for Learning English. Kelly Jean Kelly was the editor.

Words in This Story

journal - n. a magazine that reports on things of special interest to a particular group of people

leak - v. to let something (such as a liquid or gas) in or out through a hole in a surface

onsite - adv. at the place where a business or activity happens

seismic - adj. of, relating to, or caused by an earthquake

sample - n. a small amount of something that gives you information about the thing it was taken from

sanctions - n. an action that is taken or an order that is given to force a country to obey international laws by limiting or stopping trade with that country, by not allowing economic aid for that country, etc. — usually plural

网友的学习评论(0条):
版权所有©2003-2019 南京通享科技有限公司,保留所有权利。未经书面许可,严禁转载本站内容,违者追究法律责任。 互联网经营ICP证:苏B2-20120186
网站备案:苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台